Improvement in ash-screens



1:. c. JENKINS, Jr.

I A sh' Screen. v L No. 111.126. Patented Jan. 24-, 18?];

N. PETERS, PMOTO-LJTHOIGRAPNER, WASEINGTON D O ttniirb' States jfiairni (ti Letters Patent No. 111,126, dated January 24, 1871.

IMPRQVEMENT IN ASH-SCREENS.

Theschedule referred to in these Letters Patent and making part of the same.

To all to whomLthese presents shall come.-

Be it known that I, Enunnznn O. J ENKLNS, J r., of the city and county of "Worcester and State of Massachusetts, have made an invention of a'eertain novel andnseful Screen for Ashes; and'do hereby declare the following to be a full, clear, and exact description thereof, due reference being had to the accompanying drawing making part oft-his specification, and in which- Figure l is a 1; erspective elevation of myinvention, with its cover raised to expose its interior,

Figure 2 being a longitudinal and vertical section of the same, with its cover closed.

' The purpose of my invention is to produce a sitter for household use, which shall enable the disagreeable duty of sitting ashes to be neatly and expeditiously as well as easily performed,.the said invention consisting, mainly, in the peculiar form of the revolving screen or cage; and,secondly, in its combination with the inclosing and ash receivingbox or case of thcdevice, whereby the removal of the coal after sifting is efi'ected with the expenditure of very little labor, substantially as hereinafter explained.

The drawing accompanying this specification and illustrating my invention represents, at A, a cubical box or case, provided with a raised deep cover, 13, of

somewhat less length, and hinged'to a narrow'shelf, (1, bridging the rear end of the box, the front end of such cover hcing'prolonged to such an extent as to partially close the front end of the said box.

Within the box A l dispose a rotary screen or cage, E, which is mounted upon a horizontal shaft, D, disposed in open semicircular bearings a a, formed in the upper edges of the sides of the box, and transversely thereof, the lower edges of opposite sides of the cover being prov ded with like bearings b 7), coinciding with the bear ngs (t (1., and serving, in connection with tl1em, whcn the cover is closed, to maintain the shaft and screen in proper place and permit them to freely revolve.

The circumference of the rotary screen is indented or irregular, or formed with angular irregularities, as shown in fig. 2 of the drawing, in order not only to obtain greater extent of screening-surface in a given diameter, but to create a great disturbance and separation ofthc ashes and coal, since, were it not for the angles and corners of the screen, the centrifugal force generated by the revolution of the screen would throw the coal in large quantities to the outsidc of the screen, and the ashes, to a great extent, to the center, and thus defeat the main object of this invention.

As, owing to the diversified circumference, and especially to the angular corners a a of the sifter or screen E, a very slow rotation only is necessary, no

centrifugal force of any account is geuei'ated, and the separation of the coal and ashes and escape of the latter, are effected with very little labor and in an in credibly short space of time.

Theperiphery of the cage or siftci' e is provided with a door, F, for enabling ashes to be introduced, and the screened coal to be subsequently removed.

The size of the said sifter 0 should, in practice, be sutficient to contain the ashes madeby ordinary families in a fortnight, or thereabout; and such siftcr should he suffered to remain in a'position with its'door upper-most, and open until filled, or nearly so, by the' ashes which have been dumped through its open door, the cover of the case A, as a matter of course, being open.

When the screen is nearly or quite filled, its door F is to be closed and the cover of the box Ashu.t,the screen being then slowly rotated a few times, which will precipitate the ashes to the bottom of the box and retai'nthe coal and slag within the screen.

The dust having subsidedwithin the box, its cover.

is to be opened, and the screen 6 trundled or pushed along the upper edges of the sides of the box until its shaft reaches and drops into two oppositely-disposed shallow bearings c 0, created in cars dd, extending from or making part of the extreme end of each side of the box, the length of these cars and the situation of the bearings c c beingsuclras to bring the greater part of the screen outside said box.

\Vhcn in this position the door of the screen should be underneath, and upon opening it the coal and'slag will be precipitated therefrom into a suitable vessel placed toreceive them,

It is believed that a siftcr constructed as above described will sift ashes or other substances in a much quicker and easier manner than by any device heretofore known, and for these reasons is believed to possess considerable value for the public.

Having thus explained the nature, purposes,-and advantages of my invention, I

I claim-as such, and desire to secure by Letters Patent of the United States, the following, that isto say- The herein-described screen, composed of the case A and the rotary sifter'or screen 41, the box being provided with the overhanging bearings o c,'and the screen, with theirregularnndulating surface, and the door F, the whole operating in manner as before explained E. O. JENKINS, JR.

Witnesses FRED. CURTIS,- EDW, GRIFFITH. 

